private void 分割数据ToolStripMenuItem_Click(object sender, EventArgs e)
{
if (pIsSelect == false)
{
MessageBox.Show("请先进行地图分割范围选择", "提示");
}
else if (pIsSelect == true)
{
pActiveView = this.axMapControl1.ActiveView;
pMap = pActiveView.FocusMap;
////先清除已有选择图形
//pMap.ClearSelection();
//pActiveView.Refresh();
if (sourceDbName == "")
{
MessageBox.Show("请选择需分割的个人数据库路径");
return;
}
else if (pBufferDistance == 0)
{
MessageBox.Show("请设置缓冲区半径！");
return;
}
//数据分割之前先导出数据框架
string XmlFile = System.Windows.Forms.Application.StartupPath + "\\WS_Schema.xml"; // 配置文件放置在应用程序的可执行文件的路径下。
ExportWS_Schema(sourceDbName, XmlFile);
//检查文件是否已经存在
bool isExist = File.Exists(dbPath + dbName);
if (isExist == true)
{
File.Delete(dbPath + dbName);
}
ImportWS(dbPath, dbName, XmlFile);
//********************************************
//IGeometry pGeometry = this.axMapControl1.TrackPolygon();
IGeometry pGeometry = (IGeometry)SelectArea;
IGeometry pBufferGeometry; //缓冲区几何图形
axMapControl1.DrawShape(pGeometry, ref m_FillSymbol);
//空间查询
ILayer pLayer;
IFeatureLayer pFeatureLayer;
IFeatureClass pFeatureClass;
ISpatialFilter pSpatialFilter = new SpatialFilter();
IFeatureCursor pFeatureCursor;
IFeature pFeature;
int m;
string pFileGDB;
//遍历地图控件中的每个图层,进行多边形选择
for (int i = 0; i < axMapControl1.Map.LayerCount; i++)
{
pLayer = pMap.get_Layer(i);
pFeatureLayer = (IFeatureLayer)pLayer;
pFeatureClass = pFeatureLayer.FeatureClass;
string str = pFeatureClass.AliasName;
pSpatialFilter.set_GeometryEx(pGeometry, false);
//设置空间过滤关系为包含
pSpatialFilter.SpatialRel = esriSpatialRelEnum.esriSpatialRelContains;
pFeatureCursor = pFeatureClass.Search(pSpatialFilter, false);
pFeature = pFeatureCursor.NextFeature();
////遍历所有符合要求的要素，使用IMap：：SelectFeature方法将他们添加到图层的选择要素层中去
while (pFeature != null)
{
pMap.SelectFeature(pFeatureLayer, pFeature);
pFeature = pFeatureCursor.NextFeature();
}
pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection, null, null);
m = this.axMapControl1.Map.SelectionCount; // 选择要素的个数
}
DialogResult result = MessageBox.Show(this, "是否按此范围进行数据分割？", "提示", MessageBoxButtons.YesNo);
if (result == System.Windows.Forms.DialogResult.Yes)
{
//pFileGDB = Properties.Settings.Default.targetPersonalGDB;//此处是写死的参数，可以修改
pFileGDB = dbPath + dbName;
//缓冲区
pGeometry.SpatialReference = this.axMapControl1.SpatialReference;
ITopologicalOperator topologicalOperator = pGeometry as ITopologicalOperator;
pBufferGeometry = topologicalOperator.Buffer(pBufferDistance);
//打开目标数据库
IWorkspaceName pWorkspaceName = new WorkspaceName() as IWorkspaceName;
pWorkspaceName.WorkspaceFactoryProgID = "esriDataSourcesGDB.AccessWorkspaceFactory";
pWorkspaceName.PathName = pFileGDB;
IName pName = pWorkspaceName as IName;
IFeatureWorkspace target_ws = pName.Open() as IFeatureWorkspace;
IWorkspaceEdit wse = target_ws as IWorkspaceEdit;
//遍历地图控件中的每个图层,进行数据分割
for (int i = 0; i < axMapControl1.Map.LayerCount; i++)
{
pLayer = pMap.get_Layer(i);
pFeatureLayer = (IFeatureLayer)pLayer;
pFeatureClass = pFeatureLayer.FeatureClass;
string pFeatureClassName = pFeatureClass.AliasName;
//打开目标图层
IFeatureClass target_fc = target_ws.OpenFeatureClass(pFeatureClassName);
//*********设置空间过滤关系为包含，选择框内的要素剪切到第二个个人数据库里，标识为可编辑状态******************
pSpatialFilter.set_GeometryEx(pGeometry, false);
pSpatialFilter.SpatialRel = esriSpatialRelEnum.esriSpatialRelContains;
wse.StartEditing(false);
IFeatureCursor target_cur = target_fc.Insert(true);
IFeatureBuffer buffer = target_fc.CreateFeatureBuffer();
pFeatureCursor = pFeatureClass.Update(pSpatialFilter, true);
pFeature = pFeatureCursor.NextFeature();
while (pFeature != null)
{
for (int n = 0; n < pFeatureClass.Fields.FieldCount; n++)
{
IField source_field = pFeatureClass.Fields.get_Field(n);
if (source_field.Name != pFeatureClass.OIDFieldName && source_field.Name != "SHAPE_Area" && source_field.Name != "SHAPE_Length")
{
int target_field_index = pFeatureClass.FindField(source_field.Name);
if (target_field_index != -1)
{
if (source_field.Name == "Editable")
{
buffer.set_Value(target_field_index, 1);//选择框内的要素设定为可编辑
}
else
{
object source_value = pFeature.get_Value(pFeatureClass.FindField(source_field.Name));
buffer.set_Value(target_field_index, source_value);
}
}
}
}
target_cur.InsertFeature(buffer); //新的mdb图层中增加一条记录
pFeatureCursor.DeleteFeature(); //删除原数据库中的要素，保证每一个可编辑要素有并且只存在一个数据库中
pFeature = pFeatureCursor.NextFeature();
}
System.Runtime.InteropServices.Marshal.ReleaseComObject(pFeatureCursor); //释放资源
//***************设置空间过滤关系为相交，缓冲区内的要素复制到第二个个人数据库里，但标识为不可编辑状态****************
pSpatialFilter.set_GeometryEx(pBufferGeometry, false);
pSpatialFilter.SpatialRel = esriSpatialRelEnum.esriSpatialRelIndexIntersects;
pFeatureCursor = pFeatureClass.Search(pSpatialFilter, true);
pFeature = pFeatureCursor.NextFeature();
while (pFeature != null)
{
for (int n = 0; n < pFeatureClass.Fields.FieldCount; n++)
{
IField source_field = pFeatureClass.Fields.get_Field(n);
if (source_field.Name != pFeatureClass.OIDFieldName && source_field.Name != "SHAPE_Area" && source_field.Name != "SHAPE_Length")
{
int target_field_index = pFeatureClass.FindField(source_field.Name);
if (target_field_index != -1)
{
if (source_field.Name == "Editable")
{
buffer.set_Value(target_field_index, 0);//缓冲区内的要素设定为不可编辑
}
else
{
object source_value = pFeature.get_Value(pFeatureClass.FindField(source_field.Name));
buffer.set_Value(target_field_index, source_value);
}
}
}
}
target_cur.InsertFeature(buffer); //新的mdb图层中增加一条记录
pFeature = pFeatureCursor.NextFeature();
}
target_cur.Flush();
wse.StopEditing(true);
System.Runtime.InteropServices.Marshal.ReleaseComObject(pFeatureCursor); //释放资源
System.Runtime.InteropServices.Marshal.ReleaseComObject(target_cur);
System.Runtime.InteropServices.Marshal.ReleaseComObject(buffer);
}
System.Runtime.InteropServices.Marshal.ReleaseComObject(target_ws);
MessageBox.Show("数据分割成功！", "提示", MessageBoxButtons.OK);
}
pIsSelect = false;
//*****************************************
}
}
